ArticleLife sciences2025
ASK1 inhibition by selonsertib attenuates elastase-induced emphysema in mice.
Article in Life sciences, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Chronic obstructive pulmonary disease (COPD) is the third leading cause of death worldwide, with its most severe form being pulmonary emphysema, for which no effective treatment currently exists. Apoptosis signal-regulating kinase 1 (ASK1) has been implicated in lung inflammation and injury. Here, we investigated the experimental treatment of elastase-induced emphysema in mice with selonsertib, an ASK1 inhibitor. Animals received intratracheal elastase and were subsequently treated with intranasal selonsertib at different doses. On day 21, bronchoalveolar lavage fluid and lung tissues were collected for histological and biochemical analyses. Results showed that elastase-instilled mice developed pulmonary emphysema, whereas treatment with selonsertib at a dose of 2 mg/kg significantly reduced mean alveolar diameter. Moreover, higher doses of selonsertib were effective in reducing inflammatory cytokines (CX3CL1, IL-6, CCL2, and IL-1β), reactive oxygen species, and apoptosis. These findings suggest that ASK1 plays a critical role in the development of elastase-induced emphysema in mice and could be a target for COPD treatment.
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